2.3.1 Personal protective equipment (PPE) If it is necessary to enter a bat roost, proper equipment is essential and appropriate clothing should be worn. Overalls are recommended because they protect clothes from dirt and the body from splinters or irritation caused by fibreglass insulation. Shoes or boots with a thick sole should be worn to give protection against projecting nails industrial safety boots or safety trainers with nail-resistant soles are ideal. Tough gloves, such as gardening gloves, can give protection against splinters, nails and sharp edges. Their use is a matter of individual preference, although gloves must always be worn for handling bats. Dust masks should be worn if you have any form of respiratory sensitivity and eye protection maybe advisable when opening aloft hatch from below. Hard hats can provide considerable protection against falling objects or projecting nails, but they need a certain amount of care if they are to function properly. The hat must be a good fit, with the inner harness and strap adjusted properly. The gap between the harness and the plastic shell is essential for the proper functioning of the hat, so do not store anything there. The plastic shell is tough, but not indestructible, and you should ensure that it is cared for properly do not apply solvents to it or modify it in anyway. Hats that have received a significant sharp blow or are over 5 years old should be replaced. Hats that are over 2 years old should be tested regularly by squeezing the sides and watching for any cracking, whitening or kinking of the plastic. In an ordinary attic, the use of a hardhat is optional, but they should be worn if there is any risk of being hit by a falling object, such as a roof tile or any debris from old or derelict buildings. Baseball ‘bump-caps’, which 2.3 SAFETY IN AND AROUND BUILDINGS give protection against projecting nails and bumps against roof timbers, are widely available. Any roost visit requires good lighting. Ahead torch is preferable because it leaves you with both hands free and provides light in the direction you are looking. Small dry-battery operated head torches are light and convenient for visits to domestic roosts, but rechargeable caving and mining lamps have a much longer life, although they are fairly heavy. Always carry a spare torch as insurance against being stranded in the dark.